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The mammalian genital ridge is bipotential. Which one of the following statements regarding determination of the fate of genital ridge is INCORRECT? (1) The activation of Sox9 gene promotes testis […]

Following statements were made about sex determination in Drosophila melanogaster A. It is achieved by a balance of female determinants on the X-chromosome and male determinants on the autosomes. B. […]

A mutant embryo of Drosophila in which one of the major sex determining gene, sex lethal, can only undergo default splicing, was allowed to develop. The following statements are towards […]

Sxl genes of Drosophila regulate expression at (1) Transcriptional level (2) Post transcriptional level (3) Translational level (4) post translational level Introduction Sex determination in Drosophila hinges on the function […]

Individuals having X chromosome and short arm of Y chromosome are male while individuals having X chromosome and long arm of Y chromosome are female. This suggest that (1) Genes […]

In Drosophila XO are male and XXY are female while in humans XO are female and XXY are male. On the basis of given information which statement is NOT true […]

It has been observed the transfer of certain X segment in XO male of Caenorhhabditis elegans, restores female character. It suggest that mode of sex determination is (1) X/A ratio […]

Drosophila with chromosome complement XXXXY/AA will be- (1) Meta female (2) meta male (3) normal male (4) Intersex Introduction to Drosophila Sex Determination Drosophila melanogaster utilizes a unique mechanism of […]

Sex determination in Drosophila is based on ratio of number of X chromosomes to- (1) Number of autosomes (2) Sets of autosomes (3) Number of Y chromosome (4) Sets of […]

The following assumptions were derived from the above experiment: A. Medium A contained FGF and PDGF. B. Medium B contained retinoic acid. C. Cells cultured in Medium B were determined […]